JP2012083133A - Drop test device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drop test device which achieves a simple device configuration and downsizing and also allows simple operation, by changing the shape of a table for mounting a test object thereon.SOLUTION: A drop test device 20 for a test object 10 includes: columns 12 which are provided so as to stand out from a base 11; an elevating member 13 which is attached to the columns 12 so as to be slidable, and which can be fixed at a reference position; a vertical movement mechanism 14 which forces the elevating member 13 to fall only by a predetermined distance at acceleration over gravitational acceleration; a mount table 15 for the test object, which can move in a horizontal direction relative to the elevating member 13 and which has a notch 16 angled at 45 degrees to left and right with respect to the moving direction; and a horizontal movement mechanism 18 which causes, while the elevating member 13 is being forced to drop, the mount table 15 to move, so as to remove the mount table 15 from a range in which the test object 10 falls. Further, the test object 10 is placed with a slant on the mount table 15. This reduces a travel of the mount table 15 in the horizontal direction during drop test, thereby achieving downsizing of the drop test device.

Description

  The present application relates to a drop tester, and more particularly, to a drop tester that tests a protection performance of a packaging member against a packaged product by allowing the packaging member in a state in which the product is packed to fall freely from a predetermined height as a test object.

  The packing member is for packing a product such as an electric product and protecting the product inside from a shock applied from the outside during transportation. The drop tester is a device that allows a packaging member packed with a product to freely drop from a specified height as a test object, and tests whether the product inside is reliably protected by the packaging member after dropping. In general, the drop tester is a device base, a column protruding from the base, a lifting member that can change the height from the base by sliding on the column, a table that is attached to the lifting member and holds the packing member, And a holding release device for releasing the holding of the packing member by the table.

  In order to drop the holding member on the table without applying stress to the packing member held on the table, the table released by the gravitational acceleration at a speed faster than the free dropping speed of the packing member at the start of the test is used. It is a device that removes from the fall range during the fall. In such a holding release device, a method of pulling out the table in the horizontal direction, a method of moving the table in an arc and removing it from the fall range (see Patent Document 1), a method of opening the two divided tables in the width direction of the packing member Etc. In addition, the packing member is held between both sides with an arm instead of a table, and the arm is opened during a drop test (see Patent Document 2), or the upper surface of the packing member is sucked and held from above, and sucked during a drop test. There is also a drop tester that releases

Japanese Patent Laying-Open No. 2003-344251 (FIG. 5)

Japanese Patent Laying-Open No. 2003-344252 (FIG. 9)

However, the packaging member holding and releasing device in each method of the conventional drop tester has the following problems.
(Method of pulling out the table horizontally during free fall of the packing material)
When the packing member is large, the length of the table on which the packing member is placed becomes longer than the distance from the end surface of the packing member to the center of gravity, so the time for pulling out the table becomes longer, and the table lowering distance also becomes longer, Drop evaluation test from a low position is not possible. Moreover, since the length which moves a table to a horizontal direction is required, the size of a drop tester becomes large.

(Method to remove the table by moving the arc in the free fall of the packing material)
When the packaging member is large, the table length requires a support radius that is half or more of the length of the packaging member, so that a drop evaluation test from a low position of the large packaging member cannot be performed.
(Method to open the table divided into two sets in the width direction of the packing material)
Since the number of drive shafts increases and the distance between the divided tables needs to be adjusted according to the size of the packing member each time, the operation is complicated.

(Method to hold the packing material from both sides with an arm instead of a table)
Since the packing member is sandwiched by the arms from both sides, the heavy packing member cannot be gripped, and the gripped portion of the packing member is deformed, and an accurate drop evaluation test cannot be performed.
(Method of sucking and holding the upper surface of the packing member from above)
Since the surface of the packing member is sucked and held, the heavy packing member cannot be sucked and held, and the sucked portion of the packing member is deformed and an accurate drop evaluation test cannot be performed.

  In view of this, the present application aims to solve the problems of the conventional drop tester, and to provide a drop tester that has a simple device configuration, can be reduced in size, and can be easily operated.

  The drop tester of the present application that achieves the above-described object includes a support column that protrudes in a direction perpendicular to the base, a lifting member that can be slidably attached to the support column and can change the drop position, and a lifting member that is predetermined from the drop position. A vertical movement mechanism that forcibly drops at an acceleration exceeding the gravitational acceleration by a distance, a mounting table for a test object that is mounted so as to be movable in a horizontal direction with respect to the lifting member, and a testing of the mounting table during the forced dropping of the lifting member A horizontal movement mechanism for removing the object from the fall range, and the mounting table is provided with a notch portion having an angle of 45 degrees symmetrically with respect to the moving direction of the mounting table. Yes.

According to the drop tester of the present application, the following effects can be obtained.
(1) Drop evaluation from a low position is possible even for a large packaged product.
(2) Since the length of pulling out the table is short, the total length of the drop tester can be shortened.
(3) Since the distance for lowering the table is shortened, the height of the testing machine can be reduced.
(4) Since the output of the drive source for pulling out the table is small, the drop tester is inexpensive.
(5) Even if the size of the packed product changes from large to small, a drop test can be performed without adjustment.

(A) is a perspective view which shows the structure of the prior art example of a table rotation type drop tester, (b) is a part which shows the state by which the test object was mounted in the table with which the drop tester of (a) was equipped. Side view, (c) is a partial side view showing a state in which the table has dropped from the state of (b) at an acceleration greater than the gravitational acceleration, and (d) is a test object as the table rotates immediately after the state of (c). It is a partial side view which shows the state which remove | deviated from the fall range. (A) is a side view showing a configuration of a conventional example of a table pull-out type drop tester, and (b) is a drop test in which a test object is placed on the table of the drop tester shown in (a). It is explanatory drawing which combined the top view and side view which show the positional relationship from the test object, the fall surface of a table, and the drawing-out distance of a table with time transition at the time. (A)-(d) are time transitions in the process of failing the drop test because the size of the test object placed on the table is too large in the table pull-out type drop tester shown in FIG. It is explanatory drawing which combined the top view and side view shown together. (A) is a perspective view which shows the structure of one Example of the drop tester based on this application, (b) is a fragmentary perspective view which shows the structure of another Example of the table of the drop tester shown to (a). is there. When the test object is placed on the table of the drop tester shown in FIG. 4 and the drop test is performed, the positional relationship between the test object and the drop surface of the table and the pulling distance of the table with time It is explanatory drawing which combined the top view and side view which are shown in the stage of (a)-(d). (A) is a partial plan view showing a state where a small test object is placed on the table of the drop tester of the present application, and (b) is a state where an elongated test object is placed on the table of the drop tester of the present application. (C) is a partial top view which shows the state which mounted the big test target object on the table of the drop tester of this application. FIG. 5A is a plan view of the drop tester shown in FIG. 4A, and FIG. 5B is a plan view of a modified embodiment in which the moving direction of the table is inclined in the drop tester shown in FIG. (A) is the fragmentary perspective view which shows the example which described the mark which shows the mounting position of the test object on the upper surface of the table shown in FIG.4 (b), (b) is the table shown in FIG.4 (b). The fragmentary perspective view which shows the Example which formed the recessed part for mounting a test object on the upper surface of (2), (c) is a fall when a fall prevention jig is provided in the drop tester shown in FIG. 4 (a) It is a fragmentary perspective view which shows the holding state of the test target object on the table by a prevention jig. (A) is a partial perspective view of a table portion showing the configuration of the second embodiment of the drop tester of the present application, (b) is the operation of the table in the drop tester of the second embodiment shown in (a). (C) is a partial perspective view of the table part which shows the structure of the modification of the 2nd Example of the drop tester of this application.

  Hereinafter, embodiments of a drop tester of the present application will be described in detail based on specific examples with reference to the accompanying drawings. In order to better understand the operation of the drop tester of the present application, the configuration, operation, and problems of general table rotation type and table pull-out type drop testers will be described with reference to FIGS. .

  FIG. 1A shows the configuration of a table rotation type drop tester 40. The drop tester 40 in this example includes a base 1 of the apparatus, a single support column 2, an elevating member 3 that slides on the support column 2, a table 5 that holds a test object, and a control device 7. Further, in the elevating member 3, there is a holding release device (not shown) for releasing the holding of the test object by the table 5. The elevating member 3 can be fixed at an arbitrary position of the column 2 according to the drop test height of the test object. During the drop test, the test object 10 is placed on the table 5 as shown in FIG. FIG. 1B shows a vertical movement mechanism 4 that is a holding release device that moves the table 5 in the vertical direction. The test object 10 is, for example, a packaging member 10 in which an electronic device is packaged. In the following description, the test object 10 will be described as the packing member 10.

  When the packaging member 10 as the test object is placed on the table 5 and the drop test is started, first, as shown in FIG. Descent with faster acceleration. Subsequently, as shown in FIG. 1 (d), the table 5 is rotated by the operation of the table rotating mechanism 6 to be out of the falling range of the packing member 10. As a result, the packing member 10 naturally falls and falls on the base 1. The drop tester 40 has a problem in that a drop evaluation test from a low position of the large packaging member 10 cannot be performed because the length of the table 5 requires a support radius that is at least half the length of the packaging member 10. .

  FIG. 2A shows the configuration of a table pull-out type drop tester 50. The drop tester 50 includes an apparatus base 1, two guide rails 2G, a support 2P, a stay 2S, a lifting member 3 that slides on the guide rail 2G, a vertical movement mechanism 4, and a table 5S that holds a test object. , A control device 7, a table pulling mechanism 8, and a drop height adjusting mechanism 9. The vertical movement mechanism 4 moves the table 5S and the table pulling mechanism 8 downward at an acceleration larger than the gravitational acceleration. The table pulling mechanism 8 moves the table 5S in the horizontal direction and pulls it into the main body. The drop height adjusting mechanism 9 can fix the table 5S at an arbitrary position according to the drop test height of the packing member.

  FIG. 2B shows the positional relationship between the table 5S, the packing member 10 and the base 1 during the drop test with the passage of time using a plan view and a side view. The left part of FIG. 2 (b) shows a state before dropping, in which the packing member 10 is placed on the table 5S. At this time, the height of the upper surface of the table 5S from the falling surface (the upper surface of the base 1) is set to H. The state immediately after the start of the drop test is shown in the center part of FIG. At this time, the table 5S is lowered by the table lowering height h1 at an acceleration larger than the gravitational acceleration. The packing member 10 is falling naturally due to gravitational acceleration. 2B shows a state in which the table 5S has been extracted by the table extraction length L1. The front end portion of the table 5S is moved by the pulling length L1 by the table pulling mechanism 8 shown in FIG. 2A until the packing member 10 is lowered from the height H by the lowering height h1. The packing member 10 falls on the base 1.

  3 (a) to 3 (d) show a process in which the drop test fails because the size of the packing member 10 placed on the table 5S is too large in the table pull-out type drop tester 50 shown in FIG. 2 (a). Is shown in combination with a plan view and a side view showing the change with time. FIG. 3A shows a state before dropping, in which the packing member 10 is placed on the table 5S. FIG. 3B shows a state in which the table 5S is lowered from the height H by the height h1 at an acceleration larger than the gravitational acceleration. In FIG. 3C, the table 5S cannot be pulled out from the falling range of the packing member 10 until the packing member 10 is lowered from the height H by the height h1, and one end of the packing member 10 is not attached to the table 5S. The state which collided with the front-end | tip part is shown. FIG. 3D shows a state in which the packaging member 10 is tilted and dropped on the base 1, and shows a state in which the drop test has failed.

  Thus, when the packing member 10 is large, the length of the table 5S of the portion on which the packing member 10 is placed during the drop test is long, the time for pulling out the table becomes long, and before the table is pulled out from the drop range of the packing member 10 The packing member 10 may reach the table 5S. In such a case, the drop test ended in failure, and there was a problem that a drop evaluation test from a low position could not be performed. Further, since the length for moving the table in the horizontal direction is long, it is necessary to increase the size of the table pulling mechanism 8 to increase its output, and there is a problem that the size of the drop tester increases.

  FIG. 4A shows the configuration of an embodiment of the drop tester 20 according to the present application that solves the above-described problems. The drop tester 20 has a base 11, and two guide struts 12 project vertically from the base 11. The guide column 12 has a lifting member 13 that slides along the guide column 12, and the ceiling plate 12 </ b> C spanned over the upper end of the guide column 12 has a drop height of the table 15 attached to the lifting member 13. A fall height adjustment mechanism 19 for adjustment is provided. Further, two stays 12S, which are reinforcing materials, are provided between the ceiling plate 12C and the base 11, and a control device for the drop tester 20 is provided on the base 11 between the two stays 12S. There are seventeen.

  The elevating member 13 includes a fixed portion 13B and a moving portion 13A. The fixed portion 13B has a lower drive mechanism 14 that forcibly drops the moving portion 13A downward from the fixed portion 13B by a predetermined distance at an acceleration exceeding the gravitational acceleration. Is provided. A table 15 is attached to the moving portion 13 </ b> A of the elevating member 13 via an operation plate 28. The table 15 can move in the direction indicated by the arrow M when the operation plate 18 is moved by the table pulling mechanism 18 which is a horizontal moving mechanism attached to the moving portion 13A. The table 15 is provided with a V-shaped notch 16 having an angle of 45 degrees symmetrically with respect to the moving direction M of the table 15.

  The table 15 in the drop tester 20 of this embodiment is a rectangular table provided with a notch 16, and the packing member 10 that is a test object placed on the table 15 of the drop tester 20 is: It is placed on the table 15 obliquely with respect to the longitudinal direction of the drop tester 20. That is, the adjacent bottom sides of the bottom surface of the packing member 10 are placed at the positions indicated by the broken lines in the vicinity of the notch portion 16 of the table 15. The table 15 in this embodiment is a rectangular plate-like body provided with a V-shaped cutout portion 16, but as another embodiment, as shown in FIG. An arm 25L and a second arm 25R are provided, and a Y-shaped table 25 can be formed as viewed from above.

  FIG. 5 is a plan view showing the positional relationship between the packing member 20 and the table 15 when the packing member 10 is placed on the table 25 of the drop tester 20 shown in FIG. It shows with progress of time using a side view. The part shown by (a) of FIG. 5 shows the state before the drop when the packing member 10 is placed on the table 25. Two adjacent sides of the bottom surface of the packing member 10 are placed on the edges of the first arm 25L and the second arm 25R of the table 25. The height (drop height) of the table 26 from the base 11 at this time is the height H, and this height is determined by the drop test height of the packaging member 10 and is the same as that of the conventional apparatus.

  The part shown by (b) of FIG. 5 shows the table lowering state in which the table 25 has fallen rapidly from the state in which the packing member 10 is placed on the table 25. The acceleration due to the sudden drop of the table 25 is greater than the acceleration of gravity, and the packaging member 10 is in a suspended state when the table 25 is suddenly lowered. A height at which the table 25 suddenly descends is defined as a height h2. The height h2 at which the table 25 suddenly descends is set to be smaller than the drop height h1 of the table 5S shown in FIG. 2A because the pull-out length of the table 25 is shorter than the conventional one as will be described later. be able to.

  The part shown in FIG. 5C shows a state in which the table 25 is retracted from directly below the packing member 10 by the movement of the operation plate 28 from the state in which the table 25 is lowered. The table 25 is moved by the table pulling length L2 by the table pulling mechanism 18 shown in FIG. 4 after suddenly dropping at an acceleration larger than the gravitational acceleration or during the rapid dropping. The table drawing length L2 is a length at which the table 25 does not exist in the fall range of the packing member 10. Moreover, the time for the table 25 to move by the table drawing length L2 is shorter than the time for the packing member 10 to fall naturally from the height H to the height h2.

  On the other hand, the tables 15 and 25 of the drop tester 20 hold the packing member 10 by supporting the two adjacent sides of the bottom surface of the packing member 10 with a small area, so the table drawing length L2 is shown in FIG. The pulling length L1 of the table 5S of the drop tester 50 shown may be shorter. For this reason, the output of the table pulling mechanism 18 can be reduced, and the table pulling mechanism 8 of the drop tester 50 shown in FIG. Further, by reducing the size of the table pulling mechanism 18, the length from the guide column 12 to the stay 12S can be shortened, and the drop tester 20 can be reduced in size.

  Furthermore, since the table pulling length L2 of the table pulling mechanism 18 is short and the tables 15 and 25 can be pulled out from the drop range of the packing member 10 in a short time, the drop height h2 of the tables 15 and 25 is also the above-mentioned table. It can be made smaller than the drop height h1 of 5S. The part shown by (d) in FIG. 5 shows a state where the table 25 has been dropped. Since the packing member 10 passes through the notch 26 of the table 25 and falls onto the base 11, the packing member 10 does not come into contact with the table 25 at the time of dropping even if the extraction length L2 of the table 25 is small. It can be dropped onto the table 11.

  In the drop tester 20 configured as described above, the drop tester 20 can be reduced in size by reducing the output of the table pulling mechanism 18 and the drop height of the table can be reduced, and the drop tester 20 can be manufactured at a low cost. be able to. Moreover, in the drop tester 20 of this structure, the packing member 10 of various sizes can be mounted on the table 25, as shown to Fig.6 (a)-(c). FIG. 6A shows a state in which a small-sized packing member 10 </ b> S is placed on the table 25. FIG. 6B shows a state in which a long and narrow packing member 10 </ b> L is placed on the table 25. Further, FIG. 6C shows a state in which a large size packing member 10B is placed on the table 25. FIG.

  Fig.7 (a) has shown the state which planarly viewed the drop tester 20 shown to Fig.4 (a). In the drop tester 20 of this embodiment, as described above, when the operation plate 28 is pulled into the table pulling mechanism 18 by the table pulling mechanism 18, the table 15 moves in the direction indicated by the arrow M. On the other hand, in this drop tester 20, the packing member 10 is inclined 45 degrees with respect to the longitudinal direction of the drop tester 20 and placed on the table 15 to perform a drop test.

  Therefore, in the drop tester 30 of the modified example shown in FIG. 7B, the table pulling mechanism 18 is tilted with respect to the elevating member 13 in an oblique direction, for example, 45 degrees, and is attached to a portion between the guide columns 12. ing. And the front-end | tip part of the action | operation board 38 which the table extraction mechanism 18 drives is connected with one front-end | tip part of the table 35 formed in L shape by the 1st and 2nd arms 35L and 35R. In the drop tester 30 of this embodiment, the first arm 35L and the second arm 35R match the longitudinal direction and the short direction of the drop tester 30, respectively. Can be placed on the table 35 in the same direction. When the operation plate 38 is pulled into the table pulling mechanism 18 by the table pulling mechanism 18, the table 35 moves in the direction indicated by the arrow N, so that a drop test similar to the drop tester 20 can be performed.

  Here, a modification of the table 25 shown in FIG. 4B will be described. FIG. 8A shows an embodiment in which a mark 21 indicating the placement position of the packing member 10 is described on the upper surface of the table 25. If the packing member 10 is placed on the table 25 along the mark 21, the drop test can be performed without mistake. FIG. 8B shows an embodiment in which a recess 22 is provided by recessing the position on the upper surface of the table 25 where the packing member 10 is placed. If the packing member 10 is placed exactly in the recess 22, the drop test can be performed without mistake. Furthermore, FIG.8 (c) shows the Example which provided the fall prevention jig | tool 23 in the drop tester. The fall prevention jig 23 is attached to a portion where the drop tester does not move so that the position does not change even if the table 25 falls. When the fall prevention jig 23 is used, the size of the packing member 10 is larger than the size of the table 25.

  FIG. 9A shows the configuration of the drop tester 32 of the second embodiment of the present application, and shows only the table portion. In the second embodiment, the table pulling mechanism 18 in the drop tester 20 shown in FIG. 4A is unnecessary, and the table 25 may be fixed to the moving part 13A of the elevating member by the mounting plate 33. In the second embodiment, a slide plate 24 protruding and projecting from the end surface 25T is provided on the end surface 25T facing the cutout portions 16 of the first arm 25L and the second arm 25R constituting the table 25. The slide plate 24 can be projected and retracted from the end surface 25T by a horizontal movement mechanism 27 attached to the end surfaces of the first arm 25L and the second arm 25R on the opposite side to the notch 16.

  If the mark 21 used when placing the packaging member is provided on the upper surface of the slide plate 24, the packaging member can be correctly placed on the slide plate 24. FIG. 9B shows a state in which the slide plate 24 is immersed in the first arm 25L and the second arm 25R constituting the table 25 by the horizontal movement mechanism 27. In this configuration, the table pulling mechanism 18 is unnecessary, and the moving distance of the slide plate 24 is short, so that the size of the horizontal moving mechanism 27 can be reduced, and the size of the drop tester 32 can be reduced.

  Further, as shown in FIG. 9 (c), instead of the slide plate 24, an end surface 25T facing the cutout portions 16 of the first arm 25L and the second arm 25R constituting the table 25 is separated from the end surface 25T. A plurality of slide protrusions 29 can be provided. The slide protrusion 29 can also be projected and retracted from the end face 25T by the horizontal movement mechanism 27 attached to the end face on the opposite side to the notch 16 of the first arm 25L and the second arm 25R. If the mark 31 used when placing the packing member is provided in the middle portion of the slide protrusion 29, the packing member can be correctly placed on the slide protrusion 29. Instead of the mark 31, the tip end side of the slide projection 29 may be painted to indicate the mounting position of the packing member.

  The present invention has been described in detail with particular reference to preferred embodiments thereof. For easy understanding of the present invention, specific embodiments of the present invention will be described below.

(Additional remark 1) The support | pillar which protruded perpendicularly | vertically with respect to the base, the raising / lowering member which is attached to the said support | pillar so that a fall position can be changed, and the gravitational acceleration of the said raising / lowering member exceeds predetermined gravity distance from the said fall position A vertical movement mechanism for forcedly dropping by acceleration, a placing table for a test object mounted so as to be movable in a horizontal direction with respect to the elevating member, and the placing table described above during the forced dropping of the elevating member With a horizontal movement mechanism to remove from the fall range of
A drop tester characterized in that the mounting table is provided with a notch portion having an angle of 45 degrees symmetrically with respect to the moving direction of the mounting table.
(Additional remark 2) The said support | pillar is two support | pillars which left the predetermined space | interval, The said horizontal movement mechanism moves the said mounting table to the orthogonal | vertical direction with respect to the line which connects the said 2 support | pillars, The drop tester according to appendix 1.
(Appendix 3) Above the placement table, the height can be adjusted with respect to the placement table, and when the test object is placed on the placement table, the height of the test object is increased. A fall prevention jig is provided to prevent falls from the table.
The drop test machine according to appendix 1 or 2, wherein the fall prevention jig is installed so that the position of the elevating member does not change even when the elevating member is forcibly dropped from the drop position.
(Additional remark 4) The mark which shows the mounting position of the test target object mounted in the previous mounting table is printed in the site | part adjacent to the notch part of the previous mounting table. The drop tester according to any one of the above.
(Additional remark 5) The said support | pillar is two support | pillars which separated the predetermined space | interval, and the said horizontal movement mechanism moves the said mounting table to the diagonal direction with respect to the line which connects the said two support | pillars. 5. The drop tester according to any one of appendices 1 to 4, which is characterized.

(Supplementary note 6) The drop tester according to any one of supplementary notes 1 to 4, wherein the placement table is Y-shaped when viewed from above.
(Additional remark 7) The recessed part of predetermined width is provided in the end surface which opposes the said notch part of the said table, The said test subject is mounted in the said recessed part, The any one of Additional remark 1 to 6 characterized by the above-mentioned. Described drop tester.
(Supplementary note 8) The drop tester according to supplementary note 5, wherein the oblique direction is 45 degrees.
(Supplementary note 9) The supplementary table 8 is L-shaped when viewed from above, and the operation plate is connected to one tip of the placement table. Drop tester.
(Additional remark 10) The support | pillar which protruded perpendicularly | vertically with respect to the base, the raising / lowering member which is attached to the said support | pillar so that a fall position can be changed, and the gravitational acceleration exceeds the gravitational acceleration by only a predetermined distance from the said fall position. A vertical movement mechanism for forcibly dropping by acceleration, and mounting of a test object provided with a notch portion that is attached to the elevating member and has an angle of 45 degrees with respect to a line that bisects the elevating member to the left and right A table, a holding member for the test object provided so as to be able to protrude from an end surface on the notch portion side of the mounting table, and an end surface of the holding table provided on the opposite side of the notch portion of the mounting table. With a horizontal movement mechanism that appears and disappears from the
The horizontal movement mechanism moves the holding member during the forced drop of the elevating member to remove the mounting table from the drop range of the test object.

(Additional remark 11) The said holding member is comprised from the plate-shaped member provided along the said end surface, The drop test machine of Additional remark 10 characterized by the above-mentioned.
(Additional remark 12) The drop tester according to Additional remark 10, wherein the holding member is composed of a plurality of pin-shaped members protruding and protruding from the end face.
(Additional remark 13) The mark which shows the mounting position of the said test target object is printed on the said holding member, The drop tester in any one of Additional remark 10 to 12 characterized by the above-mentioned.
(Supplementary note 14) The drop tester according to any one of supplementary notes 1 to 13, wherein the test object is a rectangular parallelepiped packing member in which an electronic device is packed.

DESCRIPTION OF SYMBOLS 11 Base 12 Guide support | pillar 13 Elevating member 14 Table downward drive mechanism 15, 25, 35 Table 16, 26, 36 Notch part 18 Table pull-out mechanism 19 Drop height adjustment mechanism 20, 30, 32 Drop test machine 21, 31 Mounting Position mark 22 Mounting recess 23 Fall prevention jig 24 Slide plate 27 Horizontal movement mechanism 28, 38 Operation plate 29 Slide pin 32 Mounting plate

Claims (5)

A strut that protrudes perpendicularly to the base, a lifting member that is slidably attached to the strut and can change the drop position, and the lift member is forcibly dropped at an acceleration exceeding the gravitational acceleration by a predetermined distance from the drop position. A vertical movement mechanism, a placing table for a test object mounted so as to be movable in a horizontal direction with respect to the elevating member, and the placing table from the fall range of the test object during forced dropping of the elevating member A horizontal movement mechanism to remove,
A drop tester characterized in that the mounting table is provided with a notch portion having an angle of 45 degrees symmetrically with respect to the moving direction of the mounting table.   The said support | pillar is two support | pillars which left the predetermined space | interval, The said horizontal movement mechanism moves the said mounting table to the orthogonal | vertical direction with respect to the line which connects the said 2 support | pillars. The drop tester described in 1. Above the mounting table, the height can be adjusted with respect to the mounting table, and when the test object is placed on the mounting table, from the mounting table of the testing object. A fall prevention jig to prevent the fall of
The drop tester according to claim 1 or 2, wherein the fall prevention jig is installed so that the position of the elevating member does not change even when the elevating member is forcibly dropped from the drop position.   The mark which shows the mounting position of the test object mounted on the said mounting table is printed on the site | part adjacent to the notch part of the said mounting table, The any one of Claim 1 to 3 characterized by the above-mentioned. 1. A drop tester according to item 1.   The said support | pillar is two support | pillars which left the predetermined space | interval, The said horizontal movement mechanism moves the said mounting table to the diagonal direction with respect to the line which connects the said 2 support | pillars. Item 5. The drop tester according to any one of Items 1 to 4.

Images